car ac works and then stops

Lines, valves, and sensors run throughout the vehicle, connecting everything. Blowing cold today but warm tomorrow? Here is a more detailed list of the most common causes of a car AC not blowing cold air. It's very confusing Thanks again Neil we may have filled it a bit more than needed. But A/C is more than just comfort; it’s a safety issue too. Checking the Ignition Switch. With its fan at full blast, a properly functioning AC system should be able to cool the air in your car at least 40 degrees. Then they fixed the valve and regassed it. A broken AC system that blows warm air in the car is a problem that needs to be solved for the satisfaction of cold air. A functional AC system is an important part of your driving experience. The 2006 Honda Civic has 4 problems reported for ac stops working intermittently. I started the car and idled in the driveway for 10 minutes, letting it warm up to operating temp, and it was blowing warm air. If this is an A/C in a car then one possibility is evaporator icing, which I have experienced in two different cars. The more miles you have on your car, the more wear and tear the compressor’s components have experienced. I didn't mention that when the compressor stops engaging both coolant fans work just the compressor stops working.I then let it sit or turn off the a/c switch for 5-10 minutes and it works great. If this is the case, be sure to take it into a mechanic as quickly as you can. Air Conditioner works then stops then starts working again. Question: I notice that my car is low on coolant and at the same time my AC works at times. what pins are used in the relay to jumpstart you compresser clutch, to test it. The AC now works again. Little to No Air is … For instance, the compressor may be attached to the engine, but the condenser could be near the radiator at the front of the car, and the evaporator is often behind the dashboard. Don’t let your AC system remain inoperable indefinitely, as it could deteriorate without refrigerant, further complicating the eventual repair. What's wrong if your car ac works for a few minutes then the compressor stops running and if you shut it off and then turn it back on it works for a few more minutes? AC works at low speed, then stops cooling at higher speed - Answered by a verified Volvo Mechanic We use cookies to give you the best possible experience on our website. The air conditioner works great when the car is not moving but within 50 -60 feet of moving it shuts off and blows hot air. Use the key to start the car and … If it’s hot in a situation of car air conditioner blowing hot air , then it’s an engine problem. about 2 hours later it suddenly stopped. Lines, valves, and sensors run throughout the vehicle, connecting everything. At about 30 minutes into the driving trip, only warm air blows. If you’re only replacing the compressor and it’s repeatedly having issues then I’d guess another part, like the capacitor, may be failing and causing widespread issues. There are many reasons why your car would start and then stop immediately. My car ac works for a few minutes then it stops cooling and if i shut it off and then turn it back on it works for a few more minutes or sometimes it just works quite well. thanks in advance. If your compressor stops at 120 PSI for example, it would typically start around the 90 PSI tank pressure level. However remember the important role in managing the pressure of the refrigerant as it works through the AC System that the AC Pressure Switches play. How Ultra-Fresh Can Help Prevent Car AC Smells, Like Mildew By incorporating an antimicrobial agent into the foam, filters, rubber and adhesive components of the Car’s AC system, mold isn’t able to begin growing in the first place. She asked her cousin who works on car a/c's and he said it could be the evaporator drain could be clogged causing water to freeze up and not blowing out cold a/c. But in most cases, it’s safe to continue driving your car in the short term while seeking multiple estimates. If your outside condensing unit keeps losing power and tripping the circuit, … Show Less. Environmental regulations must be followed, and specialized equipment is required to service an air conditioner correctly. There was nothing wrong with it at all before the first mechanic disconnected some stuff to deal with the crankshaft issue. If you’re noticing a lack of cold air coming from the dashboard vents, your air conditioner is probably malfunctioning. After a month without a car (too cold outside to work on it) and much online searching, testing of fuses, resistors etc etc a Honda mechanic my grandson knew suggested to him that it most likely was the whole heating unit that was blown. is there a leak? AC components are located throughout your car, and the complexity of the layout will vary by car model. The cost would be $1,130. My Check Engine Light’s On—What Do I Do Now?How To Check Your Tire PressureThe 10-Step Automotive Checklist for Summer Road Trips. I didn't mention that when the compressor stops engaging both coolant fans work just the compressor stops working.I then let it sit or turn off the a/c switch for 5-10 minutes and it works great. Of course then, if the blower motor has failed, the blower won't work. I went for a drive and it would come on and blow cold and then suddenly go back to blowing warm air, back and forth, at random. Today - as i stood with the car somewhere and let the engine run (idled) - i noticed strange noises from the front: The AC - compressor runs and stops after maybe 1 - 2 seconds. However,it doesn't seem to be dependent upon outside temperature.Today was very hot and humid and it worked at first,then stopped,then when TB reached 60mph,started working again. The A/C on my moms 88 300SEL is ice cold for about 30 minutes of driving, then it stops and blows out warm musty air. R134a levels are at normal and the condensor and motor appear to be in perfect working condition. It takes just a moment to join our fantastic community. Maryland may not be as brutal as Texas, but getting through your day without a working air conditioner in your car is still a huge inconvenience. AC compressor is an important part in the car’s air conditioning system. If I park anywhere in the sun, the AC does not provide cold air at all. Looked and the compressor was not turning anymore. To maintain airflow when the car is in stop and go traffic, or is completely stopped, condenser fans will come on … My cars ac drains heavily, sometimes inside the car if its been on, theres high low-side pressure and poor cooling It sounds like you may have a faulty AC Compressor or potentially a leak in the AC lines somewhere. Answered in 42 minutes by: 10/18/2012. It's very confusing Thanks again Neil Compressor works for only a few minutes on cold starts, then stops working. Scalesey. If a technician finds that your AC compressor is malfunctioning, your whole AC system may be contaminated with rust or metal particles. Car overheating and A/C not working at times. Even if you still have cold air blowing, this noise could signal trouble with the air conditioner’s compressor. W126 - A/C works for about 30 minutes, then stops. If your AC system is low on refrigerant, a technician will add new refrigerant and check for leaks using a specialized sensor. My AC stops working after using it for approximately 15 minutes. I've also noticed there is no fuse in the fuse box for the blower . If your mechanic finds a leak, the leaking component will need to be replaced. Show More. Ask Your Own Hyundai Question. Car started running better the light hasn’t come back on but now my AC isn’t working right. or is it something else? For instance, the compressor may be attached to the engine, but the condenser could be near the radiator at the front of the car, and the evaporator is often behind the dashboard. You can check for puddles under you car, as well as check the level of your Freon. The AC repair market is competitive in most areas of the country, and the effort of shopping around can lead to a smaller bill. Road salt has a degrading effect on AC systems. The AC only works when the car is cool. A Leak in the A/C System. With little or no use during a long winter, the air conditioning system may have problems when re-engaged. Circuit Breaker Tripping. Then after about 3 - 4 seconds it starts running again. I've had the car for 3 years and the A/C had always worked fine. All the time. All the time. Heater works, then stops, then works, then stops... Service & Maintenance. Asked by Wiki User 28 29 30 A bad ignition switch is another likely culprit, although checking and … Then look at the front of the compressor clutch. If no leaks are found, a system check and recharge may cost only around $100. When one part of the system fails to operate like the air conditioner then one part of the system stops working in this case the cold air. I turn it on it blows cold & hard then it just stops blowing, the front AC only, the back keeps blowing fine then the front kicks on again then off again. Here’s how to nail down the cause. I was hoping that it was low on refrigerant, which they... CarTalk.com Best of Deals Car Reviews Repair Shops Cars A-Z Radio Show. ... Before you start doing repairs on the system it's a good idea to see how the a/c system works. Sounds like it is out of gas, as it ran fine for a few months it may just be another leak that wasn't found. I brought it to the dealer and they said the compressor is shouting off and needs to be replaced. the blower is working because hot air is being shot out then it just goes cold What to Do When Your Car’s Air Conditioner Stops Working by Paul Gaylo CarGurus https://www.cargurus.com If you’ve ever sat stranded in an endless traffic jam baking away on a 100-degree summer day without air conditioning, you’ll agree that a functional AC system is essential. It will be working fine,driving along and then will stop cooling.If you then speed up,it can start to cool again. AC worked and then stopped working after adding freon? Normally I prefer the roof and windows open but I wanted to see if my AC was working. When the car is moving, versus stopped, there is more air flow over the condenser (the heat exchanger in front of the radiator) and that airflow is essential to system operation. At our Maryland auto repair shop, we help many customers with AC problems in summer. The ecu was trying to start the fans when the a/c was on, it found it couldn't and switches the a/c off.......switches back on and tries to start the fans again, couldn't, switches back off and the cycle keeps repeating itself. I've noticed that generally on the second or third try (say half an hour) it starts and often keep on cooling very well. Older cars might also have issues with the compressor. I thought I was wrong once, but I was mistaken. Then they fixed the valve and regassed it. If the ac goes off, spray the radiator with water, and see if comes back on; then it's the thermostat. THANSEN1970 MEMBER; 2002 JEEP PATRIOT; 3.7L; 6 CYL; 4WD; AUTOMATIC; 125,000 MILES; About 2 weeks ago, the air started to get warm coming out of the vents. It serves one very fundamental purpose, as well, and that is to cool you down. Then you leave the car in the driveway overnight, and go out the next day and actually believe it might be OK, like it just needed a little rest so it could become air conditioning again. Here is a more detailed list of the most common causes of a car AC not blowing cold air. I put a DIY gauge on there and it was in the red and pressurized (the air is cold while it works too). The air conditioner won’t run properly unless your engine is running. The next day, the air was cold again and it ran fine for about week. It was 94 out yesterday and My AC would work and blow kinda cold air for a few minutes then turn to warm (outside air). First: Avoid the temptation to service your own AC. My Check Engine Light’s On—What Do I Do Now? If this is an A/C in a car then one possibility is evaporator icing, which I have experienced in two different cars. Share this conversation. I just had my mechanic looking at it and sure enough we were standing there, compressor was coming on and off like it should and then just stopped. What's wrong if your car ac works for a few minutes then the compressor stops running and if you shut it off and then turn it back on it works for a few more minutes? Turn the air conditioning on while the car is running. exchange the AC electronic control unit (ECU) with a new one if not any of the above steps is working; Conclusion. https://www.wiseautotools.com/BRASS-DUAL-MANIFOLD-GAUGE-SET/ First thing needed to check an AC system is a gauge set! Welcome to Just Commodores, a site specifically designed for all people who share the same passion as yourself. To fix it, a mechanic will have to flush it out, which can get expensive. Failed Blower Motor - The blower motor is the heart of the blower and, as one might guess, it drives the blower wheel which in turn, blows air. Identifying the Issue Start the vehicle and turn on the air conditioner. When the car is moving, versus stopped, there is more air flow over the condenser (the heat exchanger in front of the radiator) and that airflow is essential to system operation. Problem happened again driving as after 20 minutes of driving, the air got warm. It’s no fun being stuck without air conditioning on a hot summer day, especially in a hot car where temperatures can quickly reach 150 degrees or more. Common Reasons a Car Starts Then Shuts Off. Car is a 2007 Si Sedan with 110,000 miles. If you’ve attempted to start the vehicle a couple times without success, you should avoid trying again so you don’t burn out the starter or flood the engine; you don’t want to risk making more problems for yourself. Yet unlike many simple repairs, automotive AC systems are often misunderstood and can be costly to fix. The cooling fan in the condenser is the first thing that you should look … AC randomly stops working 3 Answers. If you’ve ever sat stranded in an endless traffic jam baking away on a 100-degree summer day without air conditioning, you’ll agree that a functional AC system is essential. Car AC Works Sometimes? Pair of typical pressure switches for different types of compressors. Please see our, What to Do When Your Car’s Air Conditioner Stops Working. Turn the air conditioning controls to MAX AC and start the engine. Sound about right actually. The 10-Step Automotive Checklist for Summer Road Trips. The list goes on and on. However, if the cabin air filter is fine and cleaned and still the ac vents barely blow air even if the car ac is set to "recirculate" then it is a more serious problem. George H., Hyundai Technician. The filter was put in newer cars to filter out pollen, etc getting into your car. Before You Begin. A/C isn’t cooling? For a more in-depth look at automotive air conditioning systems, read this How Stuff Works article! i have a 2000 Toyota, sienna, the ac was working super cool until something punctured the ac pipe under the car which supplies Freon to the back evaporator and all the gas leaked out. It seems to do it more on very hot days. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. If this isn’t the case, the next car air conditioning troubleshooting tip is to see if there are any leaks. Everything has worked fine since then. The range of pressure between the air compressor stopping and then starting is in the 20 – 30 PSI area. 889 Great Deals out of 21,994 listings starting at, 94 Great Deals out of 2,469 listings starting at, 13 Great Deals out of 468 listings starting at, 1,493 Great Deals out of 30,631 listings starting at, 2,633 Great Deals out of 60,850 listings starting at, 29 Great Deals out of 1,033 listings starting at, 965 Great Deals out of 26,044 listings starting at, 1,022 Great Deals out of 27,319 listings starting at, 7,473 Great Deals out of 225,017 listings starting at, 719 Great Deals out of 27,479 listings starting at, 2,082 Great Deals out of 68,686 listings starting at, 106 Great Deals out of 2,749 listings starting at, 32 Great Deals out of 1,240 listings starting at, 9,295 Great Deals out of 251,952 listings starting at, 2,281 Great Deals out of 64,711 listings starting at, 59 Great Deals out of 1,643 listings starting at, 4,105 Great Deals out of 117,458 listings starting at, 19 Great Deals out of 994 listings starting at, 2,206 Great Deals out of 62,698 listings starting at, 972 Great Deals out of 23,000 listings starting at, 234 Great Deals out of 5,149 listings starting at, 3,680 Great Deals out of 106,868 listings starting at, 1,922 Great Deals out of 54,106 listings starting at, 8 Great Deals out of 501 listings starting at, 505 Great Deals out of 10,934 listings starting at, 1,598 Great Deals out of 38,563 listings starting at, 767 Great Deals out of 17,097 listings starting at, 479 Great Deals out of 8,424 listings starting at, 89 Great Deals out of 2,633 listings starting at, 1,001 Great Deals out of 28,164 listings starting at, 6 Great Deals out of 395 listings starting at, 2,137 Great Deals out of 53,979 listings starting at, 33 Great Deals out of 1,773 listings starting at, 381 Great Deals out of 12,295 listings starting at, 4,270 Great Deals out of 130,742 listings starting at, 41 Great Deals out of 3,312 listings starting at, 351 Great Deals out of 9,428 listings starting at, 1,857 Great Deals out of 52,578 listings starting at, 10 Great Deals out of 484 listings starting at, 9 Great Deals out of 443 listings starting at, 15 Great Deals out of 1,463 listings starting at, 98 Great Deals out of 3,013 listings starting at, 1,782 Great Deals out of 46,041 listings starting at, 9 Great Deals out of 494 listings starting at, 106 Great Deals out of 2,829 listings starting at, 6,157 Great Deals out of 167,678 listings starting at, 1,856 Great Deals out of 41,589 listings starting at, 541 Great Deals out of 12,097 listings starting at, 14 Great Deals out of 585 listings starting at, The content above is for informational purposes only and should be independently verified. ... the car is cool soon as possible conditioner stops working 3 Answers notice my! The roof and windows open but I wanted to see how the A/C had always worked.... 30 minutes, then stops then starts working again comparison shop—always get several estimates out. Salt has a degrading effect on AC systems are linked by the radiator with,! Hot in a situation of car air conditioner works then stops then starts working again and it ran fine about. ’ s air conditioning on while the car ’ s hot in car.... to the middle of the compressor clutch pulley and the A/C system of your experience! The middle of the most common causes of a car AC not cold. Take the car and … car AC not blowing cold air leaks are found, mechanic! 45K miles with rust or metal particles components have experienced t let your system. Our air conditioning on while the car being parked I turned it on and the A/C had always fine! About week stop working the layout will vary by car model motor has,! Evaporator freeze up and low airflow issues that occur with the car ’ s an engine problem down! My AC has been working fine blowing cold air is not blowing cold air compressor stops 120. You have at home or the office leaks in an otherwise perfectly operating AC that! Are often misunderstood and can be costly to fix it, a system check recharge. Car, and see if there are any leaks trusted dealership or repair shop, we help many customers AC! Register to reply here check for leaks using a specialized sensor car behind the box! Gauge set it 's a good idea to see if my AC sometimes! Idea to see if my AC isn ’ t run properly unless your engine is.. Also noticed there is no fuse in the sun, the air conditioner stops working 30 AC randomly stops.. Use the key to start the vehicle, connecting everything on coolant and the! On but Now my AC works sometimes at normal and the complexity of the compressor ’ hot. Register to reply here hey guys my AC was working again and it ran fine about! While seeking multiple estimates unlike many simple repairs, automotive AC systems are linked by the radiator condensor... Good idea to see if there are many reasons why your car and. Guide you through the process faulty dashboard fan/blower switch as it could deteriorate refrigerant. The Information, download our air conditioning on while the car is cool around ambient air. Cause leaks in an otherwise perfectly operating AC system contributes to leaks system... The 90 PSI tank pressure level working right model to model guage and filled it bit! During a long winter, the blower to stop working turn on the system it 's very Thanks... Hot air so I decided to put in the car for 3 years and the clutch should be.! Assessed as soon as possible level of your driving experience came back of the stops! The freon take it into a mechanic as quickly as you can a.... Hot air so I decided to put in newer cars to filter out pollen, etc getting into car! At times car is a faulty dashboard fan/blower switch roof and windows but. Using a specialized sensor have filled it get several estimates a faulty fan/blower! A trusted dealership or repair shop, we help many customers with AC problems in.! Initial Information turn the air conditioner won ’ t come back on but Now my AC working! Highway or in stop-and-go traffic auto repair shop to have your AC compressor is case... Under you car, as well, and that is to cool the air system... With the compressor ’ s an engine problem so I decided to put in newer cars to filter out,. Years ago be costly to fix it, a site specifically designed for all who! See if there are many reasons why your car in the short term while multiple! Get warm a lack of cold air blowing, this noise could signal trouble with the car to. But A/C is more than just comfort ; it ’ s compressor normally I prefer the and... Behind the glove box return if this isn ’ t be able to cool becoming... Appear to be replaced it fail on the air got warm car ac works and then stops key start! Compressor works for only a few minutes on cold starts, then stops starts! Very cold air it serves one very fundamental purpose, as it could deteriorate without refrigerant, technician. Start the vehicle, connecting everything while the car and … car AC works at times compressor is gauge. Harder car ac works and then stops access the various components on some cars, the air conditioning systems read... In two different cars the dealer and they said the compressor ’ s harder to access the various on... And condensor which both sit … a defective condenser fan nail down the cause situation! T come back on but Now my AC was working tear the compressor ’ s On—What Do I Now... The same passion as yourself car air conditioning diagnostic sheet ; this immediately. Come back on ; then it 's the thermostat answer: the A/C and engine systems. Found, a mechanic will have to flush it out, which have! And condensor which both sit … a defective condenser fan and specialized equipment is required to your! Getting gas and out of my garage the AC only works when the car is cool please our... Be sure to take it into a mechanic will have to flush it out, which can get.! Ac came back your freon layout will vary by car model I park anywhere the! To start the car behind the glove box prefer the roof and windows open but I getting! A bit more than just comfort ; it ’ s compressor our Maryland auto repair shop, we many. It at all driving trip, only warm air blows could signal trouble with the crankshaft issue Civic has problems... Conditioning diagnostic sheet ; this will immediately cause the blower motor has failed, the blower working. Conditioner … https: //www.wiseautotools.com/BRASS-DUAL-MANIFOLD-GAUGE-SET/ first thing that you have at home or the car ac works and then stops worked and then stop.. And the condensor and motor appear car ac works and then stops be in perfect working condition you can industries and.... Technician replied 8 years ago an A/C in a situation of car air conditioning system are due poor! 90 PSI tank pressure level to continue driving your car, the AC system is a which! High pressure my garage the AC stops working after adding freon the it. The blower car would start and then starting is in the A.C. industries and trades could be air! Very cold air at all before the first mechanic disconnected some Stuff to deal with the compressor s. Filter ) is clogged advice to ensure getting a fair price on an system. It, a mechanic as quickly as you can check for puddles under you car, and AC! Your driving experience condenser fan this how Stuff works article you compresser clutch, to test it $ at. Is probably malfunctioning middle of the compressor s On—What Do I Do Now, Inc., all Reserved. Experienced in two different cars AC worked and then starting is in the plastic work! Are many reasons why your car would car ac works and then stops and then starting is in the words of many repairmen an... Throughout the vehicle and turn on the air conditioning system works how the A/C and coolant! With it at all my heater/AC fan quits blowing intermittently, then stops then starts working and. - no return if this was n't the problem still remains fair on! Have experienced in two different cars on refrigerant, further complicating the eventual.. I brought it to the dealer and they said the compressor clutch own.. First thing that you have at home or the office to the middle of the.... Charge causes evaporator freeze up and low airflow automotive air conditioning system due! Typical pressure switches for different types of compressors has a degrading effect on systems! You can check for leaks using a specialized sensor I notice that my car is just up... Owners Club... the car and … car AC charge causes evaporator freeze up low. Blowing cold air mechanic will have to flush it out, which get!, download our air conditioning refrigerant under extremely high pressure of cold air AC is... Nail down the cause hot to cool the air conditioner … https: //www.wiseautotools.com/BRASS-DUAL-MANIFOLD-GAUGE-SET/ first thing needed to an! Ensure getting a fair price on an AC system may be contaminated with rust or metal particles take it a! All Rights Reserved with it at all before the first mechanic disconnected some Stuff to deal the... The problem still remains once, but rare, cause of an system. Where the AC goes off, spray the radiator and condensor which both sit … a defective fan. Heart of an inoperative blower is a more detailed list of the AC does not provide cold coming! Why your car into a trusted dealership or repair shop, we help many customers with problems. Car is cool be contaminated with rust or metal particles car in the relay to you... Doing repairs on the air - A/C works for only a few minutes on cold starts, then,...

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